When installing an LS7 with a dry sump system into your project, a few items on the engine will need modification before the wet sump system installation.
The Holley dipstick drill guide aids in aligning the new oil dipstick location.
In LS dry sump engines, the dipstick is located in the remote oil tank.
The boss in the block typically used for the dipstick is not drilled.
When converting to wet sump, the boss must be drilled.
This boss is parallel to nothing else, and you only get one shot at the hole.
Holley has developed a guide to help locate the bit during the drilling process.
Using two nearby threaded block holes, the guide creates alignment for a hand drill to drill the hole GM would have for a wet sump application.
An innovative drill chip slot allows chips to be vacuumed during the drilling process.
